XML 95 R52.htm IDEA: XBRL DOCUMENT
v3.20.1

EMPLOYEE BENEFIT PLANS - Additional Information (Detail) $ in Millions |  | 3 Months Ended | 12 Months Ended
--- | --- | --- | ---
Dec. 31, 2007 USD ($) | Mar. 31, 2020 USD ($) | Dec. 31, 2019 USD ($) Employees
Defined Benefit Plan Disclosure [Line Items] |  |  |
Multiemployer Plans, Payment Term |  | 43 years |
Number of employees under a national master agreement and various supplemental agreements with local unions affiliated with Teamsters | Employees |  |  | 290,000
Number of pilots under a collective bargaining agreement with the Independent Pilots Association | Employees |  |  | 2,900
Ground mechanics employed under Teamster Local 272 | Employees |  |  | 1,500
Majority of ground mechanics not employed under agreements | Employees |  |  | 3,300
Multiemployer Plans, Pension [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Multi-employer Plans, Withdrawal Obligation, Fair Value Disclosure |  | $ 907 | $ 929
Multiemployer Plans, Pension [Member] | Central States Pension Fund |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Payment of withdrawal liability | $ 6,100 |  |
Defined Benefit Plan, Benefit Obligation, Period Increase (Decrease) |  |  | 2,600
Pension liability |  | 4,800 |
Long term debt | Multiemployer Plans, Pension [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Multiemployer Plans, Withdrawal Obligation, Present Value |  | 843 | 845
Other current liabilities | Multiemployer Plans, Pension [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Multiemployer Plans, Withdrawal Obligation, Present Value |  | 7 | $ 7
Defined Benefit Pension Plan | U.S. Pension Benefits |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Amount contributed to company- sponsored benefit plans |  | 19 |
Estimated future employer contributions to defined benefit plan, current fiscal year |  | 1,100 |
U.S. Postretirement Medical Benefits | U.S. Pension Benefits |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Amount contributed to company- sponsored benefit plans |  | 203 |
Pro Forma | Maximum | Multiemployer Plans, Pension [Member] | Central States Pension Fund |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Defined Benefit Plan, Benefit Obligation, Period Increase (Decrease) |  | $ 2,200 |

X
- Definition Ground Mechanics Employed Under IAM Agreements + References No definition available. + Details
Name: | ups_GroundMechanicsEmployedUnderIAMAgreements
Namespace Prefix: | ups_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Ground Mechanics Employed Under Teamster Local 272 + References No definition available. + Details
Name: | ups_GroundMechanicsEmployedUnderTeamsterLocal272
Namespace Prefix: | ups_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Multiemployer Plans, Payment Term + References No definition available. + Details
Name: | ups_MultiemployerPlansPaymentTerm
Namespace Prefix: | ups_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Multi-employer Plans, Withdrawal Obligation, Fair Value Disclosure + References No definition available. + Details
Name: | ups_MultiemployerPlansWithdrawalObligationFairValueDisclosure
Namespace Prefix: | ups_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Multi-employer Plans, Withdrawal Obligation, Payment of Withdrawal Liability + References No definition available. + Details
Name: | ups_MultiemployerPlansWithdrawalObligationPaymentofWithdrawalLiability
Namespace Prefix: | ups_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Multiemployer Plans, Withdrawal Obligation, Present Value + References No definition available. + Details
Name: | ups_MultiemployerPlansWithdrawalObligationPresentValue
Namespace Prefix: | ups_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Number of Teamsters + References No definition available. + Details
Name: | ups_NumberOfEmployeesUnderNationalMasterAgreementAndVariousSupplementalAgreementsWithLocalUnionsAffiliatedWithTeamsters
Namespace Prefix: | ups_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Number of pilots under a collective bargaining agreement with the Independent Pilots Association + References No definition available. + Details
Name: | ups_NumberofpilotsunderacollectivebargainingagreementwiththeIndependentPilotsAssociation
Namespace Prefix: | ups_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Amount of liability, recognized in statement of financial position, for defined benefit pension plan. Excludes other postretirement benefit plan. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(15)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(15)) -URI http://asc.fasb.org/extlink&oid=119400593&loc=d3e572229-122910 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=109237824&loc=d3e1703-114919 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920 + Details
Name: | us-gaap_DefinedBenefitPensionPlanCurrentAndNoncurrentLiabilities
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of increase (decrease) in benefit obligation of defined benefit plan. + References No definition available. + Details
Name: | us-gaap_DefinedBenefitPlanBenefitObligationPeriodIncreaseDecrease
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of contribution received by defined benefit plan from employer which increases plan assets. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 55 -Paragraph 17 -URI http://asc.fasb.org/extlink&oid=118257860&loc=d3e4179-114921 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (d)(iv)(01) -URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920 Reference 3: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (d)(ii) -URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920 Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 6 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e2709-114920 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (b)(3) -URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920 + Details
Name: | us-gaap_DefinedBenefitPlanContributionsByEmployer
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_DefinedBenefitPlanDisclosureLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of contributions received and expected to be received by defined benefit plan from employer in current fiscal year. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 6 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e2709-114920 + Details
Name: | us-gaap_DefinedBenefitPlanExpectedFutureEmployerContributionsCurrentFiscalYear
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Details
Name: | us-gaap_MultiemployerPlanTypeAxis=us-gaap_MultiemployerPlansPensionMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_MultiemployerPlanNameAxis=ups_CentralStatesPensionFundMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_BalanceSheetLocationAxis=us-gaap_OtherNoncurrentLiabilitiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_BalanceSheetLocationAxis=us-gaap_OtherCurrentLiabilitiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RetirementPlanTypeAxis=us-gaap_PensionPlansDefinedBenefitMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RetirementPlanSponsorLocationAxis=country_US
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RetirementPlanTypeAxis=us-gaap_PostemploymentRetirementBenefitsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_StatementScenarioAxis=srt_ProFormaMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RangeAxis=srt_MaximumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |